Berdichev felt technical coarse-wooled, semi-coarse-wooled, fine-wooled GOST

Berdichev felt technical coarse-wooled, semi-coarse-wooled, fine-wooled GOST

Felt refers to environmentally friendly materials. It owes its origin to ancient pastoralists who noticed the unique feature of animal hair to roll under special conditions. The application of this knowledge led to the creation of various types of felt: from thin felt to thick, coarse-wool technical felt. Felt fabric is an excellent insulation, has excellent sound-absorbing properties, and is indispensable in industry as a material that perfectly protects against friction.
Scope of application of coarse-wool technical felt
Being a non-woven woolen fabric, coarse wool felt is in great demand. Applicable:

     in mechanical engineering and machine tool building;
     as a heater at construction sites;
     in the footwear industry;
     as roofing and insulating materials;
     for the manufacture of oil seals, filters, gaskets;
     for the production of cleaning and polishing materials

and much more.
Felt fabric properties
To avoid disappointment, you should get acquainted with the main characteristics of the material. In recent years, artificial felt made of polypropylene has appeared on sale. Its only advantage is its cheapness. But it does not hold heat, does not allow air to pass through, has poor hygroscopicity, which leads to sweating.
High-quality felt is made from coarse sheep wool, less often goat or other animal wool is used. Chemical additives are not used. Has the following characteristics:

     Eco-friendly. Does not contain toxic substances.
     Very light and warm material.
     Excellent hygroscopicity. Felt is able to absorb and remove moisture in an amount greater than its weight.
     Wear resistance and durability.
     Has antibacterial properties. Fungal and bacterial microflora does not reproduce well in it.
Specifications of the felt Technical coarse-wool felt grade A, used for the manufacture of pads, is marked GPrA. The release of the material is carried out in rolls, the thickness of which is 10-11 mm, and the length is 1,700 mm. The bulk density of this type is 0.32g/cm3. The surface density for this type of felt is from 2.56 to 6.4 kg/m2. It is used to protect the mechanical components of various machines from dust or any other contaminants. Semi-coarse wool felt grade A for pads is designated as PPrA. The thickness of this type of roll is 10mm and the length is also 1,700mm. The bulk density is almost the same as that of the previous species, however, a little more - 0.34 g / cm3. But the surface density has a wider range and is in the region from 2.04 to 6.8 kg / m2. There is another kind of semi-coarse-wool material, but it is used to create oil seals, PS marking. The production of this technical felt is sheet. The size of one sheet is 1400 x 1000 mm, and the thickness of one sheet is from 19 to 20 mm. The bulk density is 0.38 g/cm3, the density of this plate is from 4.94 to 7.6 kg/m2.
Use of felt in a residential area This thermal insulation material is also perfect for its use in residential buildings. There are several reasons for this. The first reason for the widespread use of this product is that it is considered completely environmentally friendly and harmless to human health. The second reason is to provide excellent protection of the room from drafts, as well as cold. It can be used as an insulating material, laying it in the gaps between windows or doors. The third reason for the widespread use of technical felt, therefore, is that this material perfectly isolates the interior from external odors. Also, the use of this material will provide decent protection against mold and dampness in the room.
However, these applications are only a small part of the vast number in which it is also used. It is used quite a lot in the construction industry, in the manufacture of furniture, as well as in the creation of musical instruments. Such a large number of areas of application of the same material is explained by the fact that in the process of creation it is possible to give it various characteristics that are required in a particular industry.
What is felt

     technical pure wool - pure raw materials are used for production. Wool is processed by the “wet felting” method, which uses water and hot steam. The result is pure wool sheets in rolls, the length and width of which can reach 20 m and 2 m, respectively. The density of felt varies between 0.15 and 0.39 g per square meter. cm, and the thickness is 0.2 to 3 cm.
     needle-punched fabric is an alternative to batting, used, in particular, in furniture production. According to the composition, this type of felt fabric is divided into pure wool, wool, half-wool and synthetic. Density - fluctuates in the range of 200 - 1600 g per square meter. cm, thickness - within 0.1 - 1 cm. The material can be colored - up to twenty different shades.

Wool cloths are:

     shoe (for felted shoes: solevenous and shoe);
     technical coarse wool - used for oil seals, gaskets, filters (oil, fuel), protect against friction, in musical instruments, polishing wheels, clothes, cars;
     sweatshirts and collars - used in saddlery - saddlery;
     yurt - for the manufacture of yurts;
     construction - used as a heater and soundproof material, as well as a substrate for linoleum.

Separately, we note such a fabric as felt and what it is made of, as well as thermal felt material ( pressed felt). So here it is

     felt - felt from the down of rabbits and goats, used for the manufacture of outerwear, hats, bags and decor items.
     thermal felt is a non-woven material that is used, among other things, for the manufacture of mattresses.

Felt technical, sheet, construction: a description of the features of all types
Characteristics

     environmental friendliness. This is a completely environmentally friendly material, does not contain toxic substances in its composition. Moreover, it is able to absorb and partially neutralize formaldehyde vapors, which makes it indispensable as an insulating material in residential construction;
     thermal conductivity. Sheep wool has excellent thermal insulation properties, and felt, consisting of a large number of tightly linked wool fibers, is a unique insulation. It perfectly absorbs moisture and removes it, so the house in which it is used as a heater will never be damp and with high humidity. Felt boots are the warmest winter shoes. Feet in them will never freeze or get wet from the snow;
     antibacterial. Pathogenic microbes and mold fungi do not start in the canvas;
     ease. With all its remarkable technical characteristics, the material is also unusually light;
     wear resistance. It is resistant to abrasion, it does not lose its properties for quite a long time.

The use of felt in transport
One of the many applications of this product is the insulation of a vehicle or its complete thermal insulation. In addition to this characteristic, it is also able to create sound insulation in the car and reduce any vibration.
Since most often this material is made from natural sheep wool, at high temperatures it will not emit any harmful fumes into the atmosphere. The maximum temperature that technical felt can withstand is about 200 degrees Celsius.
In addition to all these parameters, felt is also able to protect the vehicle from moisture.
Felt technical, sheet, construction: a description of the features of all types
Use of felt in a residential area
This thermal insulation material is perfect for its use in residential buildings. There are several reasons for this. The first reason for the widespread use of this product is that it is considered completely environmentally friendly and harmless to human health. The second reason is to provide excellent protection of the room from drafts, as well as cold.
It can be used as an insulating material, laying it in the gaps between windows or doors. The third reason for the widespread use of technical felt, therefore, is that this material perfectly isolates the interior from external odors.
Also, the use of this material will provide decent protection against mold and dampness in the room.
Felt technical, sheet, construction: a description of the features of all types
However, these applications are only a small part of the vast number in which it is also used.
It is used quite a lot in the construction industry, in the manufacture of furniture, as well as in the creation of musical instruments.
Such a large number of areas of application of the same material is explained by the fact that in the process of creation it is possible to give it various characteristics that are required in a particular industry.